Quote:
Originally Posted by HUMMERcustoms.com/TAZ
...Some companies will allow a few times to send back the handheld and will put their tune back in it so you can start over. It is best even though a mess to unload put factory in and reload.
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Just to clarify, this used to be the case. Hypertech is in Memphis, and I have a very good friend that's an engineer for them. I talked to him about this new system. If you happy to lose your tune, the Max Energy looks over your system and "fills in the gaps". So no detuning and retuning.
As far as performance goes, Taz is right that you can't tune with this. HP Tuners or an ECU piggyback system of some sort is better. BUT you will NOT need to tune unless you have forced induction! Hypertech has their own dyno and spends hours upon hours to make your motor as effecient as can be from factory. This improves both gas mileage or power, depending on how you drive.
IN ADDITION, the Max Energy is updatable. Really cool. For example, if GM decided to change something halfway through the year, which is typical, you just hook the system to the USB port and download the right one. If it's something they haven't seen before, just download your stock info and send it to them. It'll be back to you in a day or two. Saves on shipping and time!
For anyone that wants to get this, it comes with a 30 day money back guarantee! Hypertech will reinburse the company you buy from for the purchase, so absolutely NO companies should have any problems taking care of it for you.